The integrating factor of differential equation $\frac{dy}{dx}+y \, tan \, x = sec \, x $ is :
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → $\sec x$
$\frac{dy}{dx}+y\tan x =\sec x$
$I.F,=e^{\int\tan xdx}$
$=e^{\log|\sec x|}$
$=\sec x$